mirror of
https://github.com/slsdetectorgroup/slsDetectorPackage.git
synced 2025-06-15 14:27:13 +02:00
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
#include "ClientSocket.h"
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#include <arpa/inet.h>
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#include <cassert>
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#include <cstring>
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#include <iostream>
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#include <unistd.h>
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#include <stdexcept>
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#include "sls_detector_defs.h"
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namespace sls {
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ClientSocket::ClientSocket(const std::string &host, uint16_t port) : DataSocket(socket(AF_INET, SOCK_STREAM, 0)) {
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struct addrinfo hints, *result;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_INET;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags |= AI_CANONNAME;
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if (getaddrinfo(host.c_str(), NULL, &hints, &result) != 0) {
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throw std::runtime_error("ClientSocket ERROR: cannot decode host\n");
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}
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//TODO! Erik, results could have multiple entries do we need to loop through them?
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// struct sockaddr_in serverAddr {};
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serverAddr.sin_family = AF_INET;
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serverAddr.sin_port = htons(port);
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memcpy((char *)&serverAddr.sin_addr.s_addr,
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&((struct sockaddr_in *)result->ai_addr)->sin_addr, sizeof(in_addr_t));
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if (::connect(getSocketId(), (struct sockaddr *)&serverAddr, sizeof(serverAddr)) != 0) {
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freeaddrinfo(result);
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throw std::runtime_error("ClientSocket ERROR: cannot connect to host\n");
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}
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freeaddrinfo(result);
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}
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int ClientSocket::sendCommandThenRead(int fnum, void *args, size_t args_size, void *retval, size_t retval_size) {
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int ret = slsDetectorDefs::FAIL;
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sendData(&fnum, sizeof(fnum));
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sendData(args, args_size);
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readReply(ret, retval, retval_size);
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return ret;
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}
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void ClientSocket::readReply(int &ret, void *retval, size_t retval_size) {
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receiveData(&ret, sizeof(ret));
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bool unrecognizedFunction = false;
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if (ret == slsDetectorDefs::FAIL) {
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char mess[MAX_STR_LENGTH]{};
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//get error message
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receiveData(mess, sizeof(mess));
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// cprintf(RED, "%s %d returned error: %s", type.c_str(), index, mess);
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cprintf(RED, "returned error: %s", mess);
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// unrecognized function, do not ask for retval
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if (strstr(mess, "Unrecognized Function") != nullptr)
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unrecognizedFunction = true;
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}
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// get retval
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if (!unrecognizedFunction)
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receiveData(retval, retval_size);
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}
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}; //namespace sls
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